. ♪ with a name like smucker's, it has to be good. >>> how did a beautiful girl grow up with loving parents and have so little in common with them not their looks or skills and that's just the start of a mystery, now being solved and all leading back to a strange man in a fertility clinic. a man who could have deceived hundreds of families in the worst possible way. here's cecilia vega. >> reporter: it started off as a hobby -- researching family history. so it gets addictive? >> yes, and boy, did i get bit by the bug. >> reporter: but what pam branum uncovered would reveal an unthinkable secret about her 21-year-old daughter -- it involves a fertility clinic and a monster unleashed from the grave. >> it shakes your world, absolutely, because everything that you knew to be true, all of a sudden wasn't. >> you know, you're like, pinching yourself, going, "this is the worst dream i have ever had. i am gonna wake up." and it didn't happen. >> reporter: it happened. >> it happened. >> reporter: it happened in salt lake city. newlyweds john and pam branum are trying to start a family with no suc